As far as races in this story go, there are three types - Heaven Races, Hell Races and Earth Races.
Here will be the rankings of every Heaven Race that has been revealed so far in the decreasing order of power.
Higher-class Angels or simply known as Archangels
Lower-class Angels or simply known as Angels
1. Emerald Angels - fourth tier of Angels - summoning done with Pentagonal Magical Symbol
- Roswaisa
2. Ruby Angels & Sapphire Angels - third tier of Angels - summoning done with Square Magical Symbol (the two types differ based on the type of power possessed)
3. Hessonite Angels - second tier of Angels - summoning done with Triangular Magical Symbol
4. Diamond Angels - first tier of Angels - summoning done with Circular Magical Symbol